Grain-hopper scale



May 19, 1925. 1,538,493 I J. P. STEEDMAN GRAIN HOPPER FSCALE FiledMarch 19, 1924 2 Sheets-Sheet 1 N N I Inventor May 19, 1925. v

. J. P. STEEDMAN GRAIN HOPPER scam:

'FiledMarch 19. 1924 lnvemfor"- s nl ii Q lvnfi Patented May 19,1925.

UNITED j STATES 1 1,538,493 PATENT OFFICE.

JAMES P. STEEDMAN, or HAMILTON, ONTARIO, CANADA, ASSIGNOR TO scene's SCALE COMPANY, LIMITED, or HAMILTON, CANADA.

GRAIN-HOIPER SCALE.

Application filed March 19, 1924. Serial No. 700,399.

To all whom it may concern:

Be it known that I, James P. STEEDMAN, a subject of the King of Great Britain, and resident of the city of Hamilton, county of Ventworth, Province of Ontario, in the Dominion of Canada, have invented certain new and useful Improvements in a Grain- Hopper Scale, as described in the following specification and illustrated in the accompanying drawings, that form part of the same. w

The principal objects of the invention are,- to devise a construction of scale which will be extremely flexible and will be capa ble of suspension either upon the floor or from the underside of a structure.

The principal feature of the invention consists in the novel construction and arrangement of parts, whereby the hopper frame is supported at its corners upon beams carried on universal suspensions arranged clear of the frame and capable of suspension from a permanent structure or from raised chair supports.

In the drawings, Figure 1 is a plan view of one-half of my improved scale suspension.

Figure 2 is a side elevational view of the suspension shown .in Figure 1, one of the supporting chairs being removed.

Figure 3 is an enlarged detail View of one corner of a suspension showing the arrangement when hung below the floor structure. Figure 4 is a perspective detail showing the univeisal chair suspension for the levers as illustrated in Figures 1, and 2, the chair being partly broken away. Figure 5 is an enlarged of the connection between. the main and. con nection levers, part of the main lever being broken away.

In the construction of scale herein shown the first element of the suspension constitutes the bolts 1 which are of sufficient strength tosupport the entire load of the scaleand its contents.

In the form of the invention illustrated in Figures 1, 2 and 4 the boltsl are suspended by their nuts 2 from chairs or saddle supports 3 which are in the form of an arch resting upon the base.

The base 1 is secured to the floor by suitable bolts 5 and the arch which is of a T- shaped cross section is formed with a central boss (3 through which the bolt 1 extends.

elevational detail The holdthrough the boss is a loose it for the bolt so that the bolt may swing in its suspension and the top of the arch is slightly convened and permits the movement of the hanging bolt without riding on the edge of the nut. i

A block 7 loosely mounted upon the bolt and supported by the head thereof carries the adjustablepivot blocks 8 and these pivot blocks engage the bearing pivots 9 of the main and connection levers 10 and 16 which are secured in the underside of the fork 11 of said lever which straddles the suspension bolt 1.

Two main levers 10 are provided. These have their free ends converging and connected to the steelyard connection 12 which is arran ed in a suitable location beyond the scale frame 13 which; is supported on the levers adjacent to their pivots upon the chair supports 14 extending downwardly from two of the corners of said frame. The opposite corners of the frame 13 are supported upon chairs 15 which engage the pivots of the connecting levers 16 which are suspended on the pivotal suspension bolts 1 at the other corners of the scale.

The connecting levers 16 extend angularly inward toward the main levers 10 to meet said main levers intermediate of theirlength and said main levers are formed with recesses 17 into which the nose-piece 18 of the connecting levers extend. This nose-piece is longitudinally adjustable on the connect ing'lever, being adjusted by means of a set screw 19.

The extremity of the nose-piece carries a bearing pivot which is supported by a. swivel shackle member 20 supported upon a bar 21 carried by a block 22 which is carried on a knife edge bearing arranged 9 necting levers closely adjacent to their pivot 7 ends and the connecting levers and main. levers are joined together an equal distance from their pivots, the main levers continuing past the frame to their connection to the steelyard.

The levers are maintained free from binding by the universal arrangement of the suspension supports described so that their operation will be quite free from any binding effect.

lhe frame is held from oscillation by means of check links 2% which.areconnected to lugs on the frame and to the chair supports or'other suitable fixed points.

In the form of application of the device illustrated in Figure 3 the suspension bolt 26 is a long bolt extending through a floor or beam structure 27, it being supported on the top of the swivel washer 28. The rest of the construction is precisely the 531116 as that described inconnection with the chair form of suspension where the-scale is mounted on a floor surface, except that the check links are shown connected to suitable'bolt fastenings 29 secured to the overhead struc ture.

It will be seen the scale structure will be identical where the bolts 26 are used for suspension from a deck or wheretlie short bolts and chairs are used for suspension from a floor surface. This universal struc ture is extremely important and avoids a great deal of difficulty otherwise met with on the matter of installation.

hat I claim as my invention is:

1. In ahopper scale, a hopper frame, a plurality of scale beams arranged in diagonal relation'to the frame, bolts suspended to swing freely from rigid supports, pivot blocks supporting the pivot ends of said beams and mounted on said bolts,said*hopper frame being supported from said levers.

2. In a hopper scale, a hopper frame, a plurality of scale beams arranged iii-diagonal relation to the frame, arched chair members, bolts suspended'from said arched chair members to swing freely, pivot blocks mounted on saidbolts and supporting the pivot ends of said beams,saidhopper frame being supported on the pivot ends of saidlevers.

3. In a-hopper scale, a plurality of sus pended bolts, pivot blocks carried by said bolts, a pair of main levers supported upon two of said pivot liilocks and liaving'their free ends converging, a steelyard connected with the converging ends of said main levers, a pair of conn cting levers pivotally suspended upon other two of said suspension bolts and having-their opposite ends connected with the main levers intermediate of their length, and a hopper frame supported on said levers.

4-. In a hopper scale, the combination with the hopper frame having chair. supports rigidly secured .thereto, leversarranged between the legs of said chair supports and having pivots supporting said chairs, pivots on said levers adjacent to the chair pivots, rigid supports, bolts pivotally suspended from said rigid supports and pivot blocks supporting two corners on one side of said frame, flexible suspensions for said main levers, a shackle pivotally suspended from each main lever, a shackle pivotally suspended "10111 the aforesad shackle, connecting levers .pivotally suspended at one end and supporting the other corners ot the frame and engaging said second set of shackles.

7. In a hopper scale, the combination with the hopper frame, having-a chair support rigidly secured to each corner,-of a pair of main levers supporting twoof said chairs, flexible suspensions for said main levers, a shackle pivotally suspended from each main lever intern'iediate of its length, a shackle suspended from each of the aforesaid shackles, connecting levers pivotally suspended at their outer ends and supporting the remaining two chairs, longitudinallyadjustable nose pieces carried on the inner ends of said connecting levers and means for locking same in adjusted PUSltlOll,PlYOlS carried by said nose pieces and engaging said second set of shackles.

JAMES P. STEEDMAN.

Witnesses i J. A. LOCHELD,

IV. K. FRANCAS. 

